> For the complete documentation index, see [llms.txt](https://docs.jetadmin.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.jetadmin.io/user-guide/core-concept/jet-ui/layouts-and-branding/custom-scripts-and-styles.md).
# Custom Scripts & Styles
**Scripts & Styles** allow you to set global JavaScript and CSS. **Global JavaScript** might come in handy for use cases such as setting up a chat functionality in your app. **Global CSS** will allow you to customize the appearance of different UI components, but unlike page-specific CSS, the changes will apply to all the UI components of the same type. It might be helpful if you want to change the shape of all buttons in your app at once.
You can access them in this section of the App Settings menu.
Learn more about Global JavaScript and CSS in [this article](/user-guide/design-and-structure/global-css-and-js.md).
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.jetadmin.io/user-guide/core-concept/jet-ui/layouts-and-branding/custom-scripts-and-styles.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.